Due to the return of Xu Chu and Yu Ban in the siege this time, Sima Yi handed over the command of the siege to Xu Chu, who was captured by Liu Feng before, and the benefits were also very obvious.

First of all, Xu Chu was captured by Liu Feng outside Wancheng before, and he was already very resentful of Liu Feng, and he hated to rush into the city immediately and cut off Liu Feng's head, so under his command, Wei Junyi had almost reached his limit, once a general failed to mobilize his soldiers according to Xu Chu's ideas, what was waiting for him would only be Xu Chu's abuse.

Not only that, but Xu Chu commanded under the city, and Sima Yi and Cao Zhang were all idle, so that there would not be a situation where the two of them only cared about the attack on Shangyong and ignored the situation behind them, and were touched not far behind by Liu Feng's army led by Wancheng.

It is precisely because of this that Liu Feng and Pang Tong, who desperately resisted the Wei army in the city, did not realize in time that Cao Zhang had led a small group of men and horses to leave the camp of the Wei army, and did not know where to go north.

But such a situation, Liu Feng did not find but does not mean that Liu Feng did not foresee, from nearly two thousand years later, he deeply knew that in the war, the most important thing is often not the fierceness and number of the two armies, but the grasp of information, once the enemy army has all the information of their own and they have not mastered all the information of the enemy, then the defeat of this battle is not far away.

According to the current situation, it is impossible for Sima Yi not to know the situation in Shangyong City, so Liu Feng did not make a fuss in the city, one of the important reasons why he personally defended the city was to attract the attention of Sima Yi and Cao Zhang as a big bait, but Liu Feng's real purpose was obviously not to rely on the 50,000 defenders in the city to repel the nearly 200,000 Wei troops.

Liu Feng put the key to this battle on the bodies of Li Chuang and Ying Wei, after these years Liu Feng has been trained and experienced in accordance with the methods and routines mastered by later generations, the shadow guards have far surpassed the ordinary scouts, they are completely able to hide their own whereabouts while grasping the situation of the enemy army, and this is the key to Liu Feng's desire to cause the information obtained by both sides to be unequal.

Therefore, although Liu Feng in the city did not know Cao Zhang's actions outside the city, what he knew was that once the enemy army had any major changes in their battalion, the shadow guard would definitely be able to know about it, and would be able to pass such news to Li Chuang's mouth in the shortest possible time, and Li Chuang, according to Liu Feng's plan before and him, should not be far from Shangyong at this time.

As Liu Feng expected, the five-day period he had set had passed and it was almost three days old, and the changes in the Wei military camp had already been known to the shadow guards, but for the shadow guards, there was still a problem in front of them.

It turned out that Sima Yi had already thought that Zhao Yun and Ma Chao in Wancheng would most likely come from Wancheng after getting the news of their attack on Shangyong, so he sent troops to block the various communication arteries between Shangyong and Wancheng.

This time, he will not let the sergeant from Wancheng here have any impact on his attack on Shangyong, he just has to wait for Cao Zhang to bring the mysterious weapon, and then break Shangyong in one go, as for whether Liu Feng can be captured and killed in Shangyong City, Sima Yi did not think about it at this time, after nearly a month, he needs to capture an important city in Liu Feng's hands, otherwise, what is the difference between him and Yang Xiu, who led the remnants of the army to flee back to Wei before an inch of merit.

The soldiers of that small group of shadow guards took Cao Zhang to the north with the news, knowing that it was almost impossible to enter Shangyong at this time and inform Liu Feng of this matter, not to mention that even if Liu Feng knew about it, he couldn't come out of Shangyong City to see what Cao Zhang's intentions were, so they had to find their commander Li Chuang within a day or two, and inform Li Chuang of this matter, so that it would be possible to seize the shortcomings of the Wei army and help Liu Feng in the city reverse the current situation.

So, they discussed a little, and divided the men and horses into two teams, one team was in place to contact the shadow guards waiting outside the Wei army camp, and the other few people with sharp skills bypassed the soldiers sent by Sima Yi to block the road, and went to the east, because when Li Chuang placed them here, he had said that as soon as he arrived in Wancheng, he would immediately lead the defenders in Wancheng to return to Shangyong to assist Liu Feng, and Li Chuang would definitely leave them with the unique mark of the shadow guards, so they were confident that they could find Li Chuang in one day.

Facts have proved that the shadow guards that Liu Feng has painstakingly trained over the years have not been in vain, they broke through the obstacles of the Wei army, relying on the instructions left by Li Chuang before, and walked less than ten miles to the east to find Li Chuang and others who were leading the army to hurry to the direction of Shangyong.

"Why are you looking for me here? According to the previous plan, you only need to wait in place, so if Sima Yi learns the location of my shadow guard, it will have a very big impact on His Majesty's strategy. ”

As soon as he saw the shadow guards, Li Chuang slashed his head and covered his face with a question, obviously, this time Liu Feng put his net worth and life on his body, he never wanted to destroy Liu Feng's plan because of the negligence of his subordinates, in that case, there is no doubt that the consequences will be something that Li Chuang cannot bear.

"The leader didn't know, less than a day ago, Cao Zhang led about 10,000 men and horses to leave the Wei army camp suddenly, and went north, looking at the situation and the equipment he brought, he must be going to carry something, I waited for you to think of the instructions when you left before, lest the Wei army's move would have any impact on the war of Shangyong, so I tried to bypass the surveillance of the Wei army and rushed to find the commander."

As soon as the shadow guard's words were finished, they immediately attracted the attention of Zhou Yu, who was beside Li Chuang, and Zhou Yu hurriedly stepped forward and asked, "Can you be sure that Wei Jun must be carrying heavy objects here?" ”

Although he didn't know why Zhou Yu had this question, the shadow guard still tried his best to think about it and said: "Those Wei soldiers didn't carry long weapons, but they brought a huge number of ropes and other things, except for carrying heavy objects, we didn't think of other possibilities. ”

After Zhou Yu heard this, his eyes widened, and then he slowly said to Zhao Yun, Ma Chao, Li Chuang and others: "This time, it is very likely that Ying Wei has really made a great contribution, and what Cao Zhang has done here is probably extremely important to Wei Jun......"